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986664141 = 32421725997
BaseRepresentation
bin111010110011110…
…100110011001101
32112202120201202100
4322303310303031
54010041223031
6241523345313
733310335561
oct7263646315
92482521670
10986664141
11466a45411
12236522239
1312954b148
14950796a1
155b949de6
hex3acf4ccd

986664141 has 12 divisors (see below), whose sum is σ = 1425574332. Its totient is φ = 657594816.

The previous prime is 986664137. The next prime is 986664191. The reversal of 986664141 is 141466689.

It can be written as a sum of positive squares in 2 ways, for example, as 486202500 + 500461641 = 22050^2 + 22371^2 .

It is not a de Polignac number, because 986664141 - 22 = 986664137 is a prime.

It is a super-2 number, since 2×9866641412 = 1947012254270535762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986664121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24955 + ... + 50951.

It is an arithmetic number, because the mean of its divisors is an integer number (118797861).

Almost surely, 2986664141 is an apocalyptic number.

It is an amenable number.

986664141 is a deficient number, since it is larger than the sum of its proper divisors (438910191).

986664141 is a wasteful number, since it uses less digits than its factorization.

986664141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30220 (or 30217 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 986664141 is about 31411.2104351297. The cubic root of 986664141 is about 995.5348053793.

The spelling of 986664141 in words is "nine hundred eighty-six million, six hundred sixty-four thousand, one hundred forty-one".

Divisors: 1 3 9 4217 12651 25997 37953 77991 233973 109629349 328888047 986664141